WO2024005507A1 - Coupler for fastening polishing disk - Google Patents

Coupler for fastening polishing disk Download PDF

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Publication number
WO2024005507A1
WO2024005507A1 PCT/KR2023/008949 KR2023008949W WO2024005507A1 WO 2024005507 A1 WO2024005507 A1 WO 2024005507A1 KR 2023008949 W KR2023008949 W KR 2023008949W WO 2024005507 A1 WO2024005507 A1 WO 2024005507A1
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WO
WIPO (PCT)
Prior art keywords
coupler
fastening
leaf spring
stopper
polishing disk
Prior art date
Application number
PCT/KR2023/008949
Other languages
French (fr)
Korean (ko)
Inventor
김미숙
Original Assignee
김미숙
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Publication date
Application filed by 김미숙 filed Critical 김미숙
Publication of WO2024005507A1 publication Critical patent/WO2024005507A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/022—Spindle-locking devices, e.g. for mounting or removing the tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B24B45/003—Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B24B45/006—Quick mount and release means for disc-like wheels, e.g. on power tools

Definitions

  • the present invention relates to a coupler for fastening a polishing disk, and more specifically, to a coupler for fastening a polishing disk used to more easily and quickly attach and detach a polishing disk.
  • a hand grinder is a tool used to partially cut (or cut) raw materials such as steel plates or to smoothly polish primary processed parts, and is widely used in various fields such as machinery, shipbuilding, and construction.
  • a typical hand grinder is driven by electricity or pneumatics and polishes the surface of an object through a polishing disc mounted on the rotating shaft of the grinder.
  • the polishing disc is a consumable part that requires replacement after use for a certain period of time, and is detachably mounted on the rotating shaft of the hand grinder.
  • a device for attaching and detaching a polishing disc of a hand grinder to solve the above-mentioned problems is disclosed in Registered Patent Publication No. 10-1483963 (January 20, 2015).
  • the polishing disc attachment/detachment device had a problem in that the rotating plate was deformed when excessive load was applied during polishing, and when the rotating plate was deformed, the polishing disc could not be supported reliably, causing a problem of deterioration in processing quality.
  • Registered Patent Publication No. 10-1934511 discloses a coupler for fastening a polishing disc that can prevent deformation of the rotating plate.
  • the coupler for fastening the polishing disc has a structure that prevents deformation of the rotating plate by positioning the fastening protrusion of the rotating plate and the ball plunger of the coupler body on the same line when the polishing disk is installed.
  • the elasticity of the ball plunger gradually weakens. As the clamping force decreased, a problem occurred in which the polishing disc was randomly separated.
  • the present invention is intended to solve the problems of the prior art described above, and its purpose is to provide a coupler for fastening a polishing disc, which can prevent the polishing disc from being separated arbitrarily by maintaining a constant fastening force with the polishing disc even when used for a long time. There is.
  • a coupler for fastening a polishing disc according to the present invention for achieving the above object includes a rotating body coupled to the rotating shaft of a grinder and to which the polishing disc is fastened, a coupler body through which the rotating body penetrates and is coupled, and the coupler body capable of rotating. Includes a coupler cover that is tightly coupled.
  • the coupler cover rotates with respect to the coupler body to couple and separate the polishing disk.
  • an arc-shaped rotation groove is formed in the coupler body, a stopper inserted into the rotation groove protrudes from the coupler cover, and a leaf spring that applies elastic force to the stopper is provided in the rotation groove.
  • the stopper moves along the rotation groove, but when the rotation of the coupler cover is completed, the leaf spring limits the movement of the stopper and regulates reverse rotation of the coupler cover.
  • the present invention configured as described above can maintain a constant fastening force with the polishing disc even when used for a long time, thereby preventing the polishing disc from being separated arbitrarily. Therefore, safety accidents that occur when the polishing disc is separated during polishing work can be prevented.
  • FIG. 1 is a diagram illustrating a state of use of a coupler for fastening a polishing disc according to an embodiment of the present invention.
  • Figure 2 is an exploded perspective view of a coupler for fastening a polishing disc according to an embodiment of the present invention.
  • Figure 3 is an exploded perspective view of the coupler body and the coupler cover among the coupler for fastening a polishing disc according to an embodiment of the present invention.
  • Figure 4 is a perspective view of a coupler cover among the couplers for fastening a polishing disc according to an embodiment of the present invention.
  • Figures 5 and 6 are diagrams showing a coupler cover and a coupler body of a coupler for fastening a polishing disc according to another embodiment of the present invention, respectively.
  • the coupler for fastening a polishing disk (hereinafter referred to as 'coupler') according to an embodiment of the present invention is a coupler with a one-touch fastening structure that allows the polishing disk to be easily and quickly fastened to or separated from the grinder.
  • the coupler 100 of this embodiment is coupled to the rotation shaft 210 of the grinder 200 and is fixed by a bolt (or nut). And the polishing disk 300 is connected to or separated from the grinder 200 in a one-touch manner through the coupler 100.
  • the coupler 100 of this embodiment has a one-touch fastening structure, and at the same time, can maintain a constant fastening force with the polishing disk 300 even when used for a long time, and has a structure that prevents the polishing disk 300 from being separated arbitrarily during polishing work. has
  • the polishing disk 300 is provided with a disk holder 310 for fastening to the coupler 100.
  • the disk holder 310 is a disk with a predetermined thickness, is located at the center of the polishing disk 300, and is formed integrally with the polishing disk 300.
  • a fastening hole 312 for fastening to the rotating body 110 is formed in the center of the disk holder 310, and a fastening piece 314 for fastening the rotating body 110 is formed in the fastening hole 312. Additionally, a mating groove 316 is formed on the lower surface of the disk holder 310 for engagement with the coupler cover 130.
  • the fastening piece 314 is composed of a plurality (three pieces in this embodiment) arranged radially along the inner peripheral surface of the fastening hole 312 so as to securely fasten the rotating body 110, and can transmit rotational force without loss. It has an L-shape extending along the inner peripheral surface of the fastening hole 312.
  • the occlusal groove 316 is a part into which the occlusal protrusion 136 of the coupler cover 130 is inserted, and is composed of a plurality of occlusal grooves radially arranged along the circumference of the fastening hole 312 so as not to limit the fastening direction of the polishing disc 300. It is composed.
  • the coupler 100 for fastening the polishing disk 300 includes a rotating body 110, a coupler body 120, and a coupler cover 130.
  • the rotating body 110 is a component for fastening to the disk holder 310, and also serves to transmit the rotating force of the grinder (200 in FIG. 1) to the coupler body 120.
  • a fastening protrusion 112 corresponding to the fastening piece 314 of the disk holder 310 is formed at the top of the rotating body 110.
  • the fastening protrusions 112 are in the shape of a rectangular parallelepiped block so that they can be fastened to the L-shaped fastening piece 314, and are plural (three in this embodiment) arranged radially along the upper circumference of the rotating body 110. It is composed.
  • unevenness may be formed on the fastening protrusion 112 and the fastening piece 314 to improve fastening force between the rotating body 110 and the disk holder 310 and to check whether fastening is performed.
  • a flange 114 is formed at the middle of the rotating body 110, which is inserted into the seating groove 134 of the coupler cover 130 when assembling the rotating body 110. At this time, the flange 114 is formed in a disk shape so that the rotating body 110 and the coupler cover 130 can rotate relative to each other.
  • 'relative rotation' means that one of the rotating body 110 and the coupler cover 130 is stationary while the other rotates.
  • a contact portion 116 is formed at the bottom of the rotating body 110.
  • the contact portion 116 penetrates and is coupled to the through hole 124 of the coupler body 120 when the rotating body 110 is assembled.
  • the contact portion 116 is formed in a polygon (hexagon in this embodiment) so that the coupler body 120 can rotate together when the rotating body 110 rotates.
  • the coupler cover 130 is a component for fastening or separating the polishing disk 300, and also serves to transmit the rotational force of the coupler body 120 to the polishing disk 300.
  • the coupler cover 130 is configured to rotate relative to the rotating body 110 and the coupler body 120 or to rotate together with the rotating body 110 and the coupler body 120.
  • the coupler cover 130 rotates relative to the rotating body 110 and the coupler body 120, while when the polishing disk 300 is fully fastened, the coupler cover 130 rotates relative to the rotating body 110 and the coupler body 120.
  • the coupler cover 130 rotates together with the rotating body 110 and the coupler body 120.
  • the stopper 139 of the coupler cover 130 moves along the rotation groove 126 of the coupler body 120, so that the coupler cover 130 rotates. Relative rotation is performed with respect to the entire body 110 and the coupler body 120.
  • the stopper 139 is in contact with the end of the rotation groove 126, so the coupler cover 130 rotates together with the rotating body 110 and the coupler body 120.
  • the coupler cover 130 is a ring-shaped disk with a predetermined thickness.
  • a through hole 132 into which the rotating body 110 is coupled is formed in the central portion of the coupler cover 130, and a seating groove 134 into which the flange 114 of the rotating body 110 is inserted is formed around the through hole 132. ) is formed.
  • the coupler cover 130 is rotatably coupled to the rotating body 110.
  • the number of occlusal protrusions 136 does not limit the fastening direction of the polishing disc 300, and in this embodiment, it consists of four, and is arranged radially along the circumference of the through hole 132.
  • a pad 138 is provided between the above-described occlusal protrusions 136. This pad 138 serves to absorb and reduce vibration by contacting the disk holder 310 when the polishing disk 300 is fastened.
  • a stopper 139 protrudes from the lower surface of the coupler cover 130.
  • the stopper 139 is a component for relative rotation of the coupler cover 130, and is inserted into the rotation groove 126 of the coupler body 120 when the coupler cover 130 is assembled.
  • the stopper 139 rotates relative to the rotating body 110 and the coupler body 120 only in the section moving along the rotating groove 126, and when it contacts the end of the rotating groove 126, the rotating body 110 and rotate together with the coupler body 120.
  • the stopper 139 is illustrated as a T-shaped block, but it is not necessarily limited to this, and of course, it can have a circular, oval, or square block shape as illustrated in FIG. 5.
  • a pair of stoppers 139 are illustrated as being arranged oppositely around the through hole 132, but as shown in FIG. 5, three stoppers are arranged radially around the through hole 132. Or it may consist of more.
  • the coupler body 120 is a component for transmitting the rotational force of the rotating body 110 to the polishing disk 300. At this time, the rotational force of the rotating body 110 is transmitted to the polishing disk 300 through the coupler cover 130 and the disk holder 310.
  • the coupler body 120 is a ring-shaped disk with a thickness greater than that of the coupler cover 130.
  • a coupling groove 122 for coupling the coupler cover 130 is formed on the upper surface of the coupler body 120. At this time, the coupler cover 130 is rotatably coupled to the coupler body 120.
  • a through hole 124 to which the rotating body 110 is coupled is formed in the central portion of the coupler body 120.
  • the through hole 124 is formed as a polygon (hexagonal in this embodiment) corresponding to the contact portion 116 of the rotating body 110, so that the coupler body 120 can rotate together with the rotating body 110. .
  • a rotation groove 126 for relative rotation of the coupler cover 120 is formed around the coupler body 130, more specifically around the coupling groove 122.
  • the rotation groove 126 has an arc shape extending along the periphery of the coupling groove 122 and consists of a pair of opposingly arranged pairs centered on the through hole 124.
  • a pair of rotation grooves 126 are illustrated as being arranged oppositely about the through hole 124, but as shown in FIG. 6, there are three or three radially arranged around the through hole 124. It may consist of more than that.
  • Mounting grooves 128 for installing the leaf spring 140 are formed at both ends of the rotation groove 126.
  • the mounting groove 128 extends from the end of the rotation groove 126 along the circumferential direction of the coupler body 130, and is formed to a length that can accommodate the amount of expansion when the leaf spring 140 is elastically deformed.
  • An insertion groove 129 for installing the cushion member 150 is formed inside the rotation groove 126, that is, inside the radial direction of the coupler body 130. It is formed at the inner middle of the rotation groove 126 of the insertion groove 129 and is formed in a form that is open outward so as to be in contact with the leaf spring 140.
  • the leaf spring 140 is a pressing means that applies elastic force to the stopper 139 of the coupler cover 130 to elastically support it.
  • This leaf spring 140 is in the form of a strap with a predetermined length and width, and has an arc shape that is convexly bent on one side.
  • both ends of the leaf spring 140 are inserted and mounted into the mounting groove 128 of the coupler body 120.
  • the middle portion of the leaf spring 140 protrudes convexly toward the pivot groove 126 and limits movement by applying an elastic force to the stopper 139 inserted into the pivot groove 126.
  • the fastening force with the polishing disk 300 can be kept constant.
  • the polishing disk 300 can be prevented from being arbitrarily separated from the coupler 100, safety accidents that occur due to the polishing disk 300 being randomly separated during polishing work can be prevented.
  • the leaf spring 140 is illustrated as having an arc shape, but it is not necessarily limited thereto. As shown in FIG. 6, both ends of the leaf spring 140 may be manufactured into a bow shape in which both ends are bent once more.
  • the leaf spring 140 is preferably inserted more recessed than the bottom of the coupling groove 122. This is to prevent the coupler cover 130, which is inserted into the coupling groove 122 and rotates, from being damaged by the leaf spring 140. To this end, the mounting groove 128 into which the leaf spring 140 is inserted must be formed deeper than the width of the leaf spring 140.
  • the cushion member 150 is a reinforcing means for maintaining the elasticity of the leaf spring 140 and is intended to prevent the elasticity of the leaf spring 140 from being reduced due to long-term use.
  • This cushion member 150 elastically supports the middle part of the leaf spring 140 outward when inserted into the insertion groove 129.
  • the cushion member 150 is preferably made of a material with a certain elasticity so that the leaf spring 140 can be elastically deformed within a certain range.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

The present invention relates to a coupler for fastening a polishing disk, which is capable of constantly maintaining the fastening force with the polishing disk even when being used for a long period of time and preventing the arbitrary separation of the polishing disk, and the coupler comprises: a rotating body which is coupled to the rotary shaft of a grinder and to which the polishing disk is fastened; a coupler body through which the rotating body is coupled; and a coupler cover coupled to the coupler body to be rotatable. According to the coupler for fastening the polishing disk having the above structure, the coupler cover fastens and separates the polishing disk while rotating relative to the coupler body when the polishing disk is rotated. Here, the coupler body has a rotation groove formed in an arc shape, the coupler cover has a stopper protruding therefrom to be inserted into the rotation groove, and the rotation groove is provided with a plate spring applying an elastic force to the stopper.

Description

연마디스크 체결용 커플러Coupler for fastening abrasive disc
본 발명은 연마디스크 체결용 커플러에 관한 것으로, 더욱 자세하게는 연마디스크를 보다 간편하고 신속하게 착탈하기 위해 사용되는 연마디스크 체결용 커플러에 관한 것이다.The present invention relates to a coupler for fastening a polishing disk, and more specifically, to a coupler for fastening a polishing disk used to more easily and quickly attach and detach a polishing disk.
핸드 그라인더는 철판 등의 원자재를 부분적으로 절단(또는 절삭)하거나 1차 가공된 부품을 매끄럽게 연마하는데 사용되는 공구로, 기계, 조선, 건설 등 여러 분야에서 널리 사용되고 있다.A hand grinder is a tool used to partially cut (or cut) raw materials such as steel plates or to smoothly polish primary processed parts, and is widely used in various fields such as machinery, shipbuilding, and construction.
통상의 핸드 그라인더는 전기 또는 공압에 의해 구동되며, 그라인더의 회전축에 장착된 연마디스크를 통해 대상물의 표면을 연마한다. 이때, 연마디스크는 일정 시간 사용 후 교환이 요구되는 소모성 부품으로서, 핸드 그라인더의 회전축에 탈착 가능하게 장착된다.A typical hand grinder is driven by electricity or pneumatics and polishes the surface of an object through a polishing disc mounted on the rotating shaft of the grinder. At this time, the polishing disc is a consumable part that requires replacement after use for a certain period of time, and is detachably mounted on the rotating shaft of the hand grinder.
종래에는 핸드 그라인더에 연마디스크를 체결하기 위하여 볼트 또는 너트를 이용하였다. 즉, 핸드 그라인더의 회전축에 연마디스크를 장착한 후 볼트 또는 너트를 이용하여 연마디스크를 고정하였다.Conventionally, bolts or nuts were used to fasten a polishing disc to a hand grinder. That is, after mounting the polishing disk on the rotating shaft of the hand grinder, the polishing disk was fixed using bolts or nuts.
그런데 볼트 또는 너트를 이용한 체결 구조는 연마디스크를 장착하거나 분리하는데 번거로운 문제점이 있었다. 또한, 연마디스크가 고속으로 회전함에 따라 볼트 또는 너트의 체결력이 약해지며 연마디스크가 임의로 분리되는 등의 문제가 있었다.However, the fastening structure using bolts or nuts had a cumbersome problem in mounting or removing the polishing disk. In addition, as the polishing disk rotates at high speed, the fastening force of the bolt or nut weakens and there is a problem that the polishing disk randomly separates.
전술한 문제점을 해결하기 위한 핸드 그라인더의 연마디스크 탈부착장치가 등록특허공보 제10-1483963호(2015.01.20.)에 개시되어 있다.A device for attaching and detaching a polishing disc of a hand grinder to solve the above-mentioned problems is disclosed in Registered Patent Publication No. 10-1483963 (January 20, 2015).
그런데 상기 연마디스크 탈부착장치는 연마작업 시 과도한 부하를 받을 경우 회동판이 변형되는 문제가 있었으며, 회동판이 변형될 경우 연마디스크가 확실하게 지지되지 못해 가공품질이 저하되는 문제를 야기하였다.However, the polishing disc attachment/detachment device had a problem in that the rotating plate was deformed when excessive load was applied during polishing, and when the rotating plate was deformed, the polishing disc could not be supported reliably, causing a problem of deterioration in processing quality.
한편, 등록특허공보 제10-1934511호(2019.01.02.)에는 회동판의 변형을 방지할 수 있는 연마디스크 체결용 커플러가 개시되어 있다.Meanwhile, Registered Patent Publication No. 10-1934511 (January 2, 2019) discloses a coupler for fastening a polishing disc that can prevent deformation of the rotating plate.
상기 연마디스크 체결용 커플러는 연마디스크의 장착 시 회동판의 체결돌기와 커플러 바디의 볼 플런저가 동일선상에 위치시킴으로써 회동판의 변형을 방지할 수 있는 구조이나, 장시간 사용할 경우 볼 플런저의 탄성이 점점 약해지며 체결력이 저하되어 연마디스크가 임의로 분리되는 문제가 발생하였다.The coupler for fastening the polishing disc has a structure that prevents deformation of the rotating plate by positioning the fastening protrusion of the rotating plate and the ball plunger of the coupler body on the same line when the polishing disk is installed. However, when used for a long time, the elasticity of the ball plunger gradually weakens. As the clamping force decreased, a problem occurred in which the polishing disc was randomly separated.
본 발명은 전술한 종래 기술의 문제점을 해결하기 위한 것으로서, 장시간 사용에도 연마디스크와의 체결력을 일정하게 유지할 수 있어 연마디스크가 임의로 분리되는 것을 방지할 수 있는 연마디스크 체결용 커플러를 제공하는데 그 목적이 있다.The present invention is intended to solve the problems of the prior art described above, and its purpose is to provide a coupler for fastening a polishing disc, which can prevent the polishing disc from being separated arbitrarily by maintaining a constant fastening force with the polishing disc even when used for a long time. There is.
상기 목적을 달성하기 위한 본 발명에 의한 연마디스크 체결용 커플러는, 그라인더의 회전축에 결합되고 연마디스크가 체결되는 회전체와, 상기 회전체가 관통 및 결합되는 커플러 본체와, 상기 커플러 본체에 회전 가능하게 결합되는 커플러 커버를 포함한다.A coupler for fastening a polishing disc according to the present invention for achieving the above object includes a rotating body coupled to the rotating shaft of a grinder and to which the polishing disc is fastened, a coupler body through which the rotating body penetrates and is coupled, and the coupler body capable of rotating. Includes a coupler cover that is tightly coupled.
상술한 구성의 연마디스크 체결용 커플러는 연마디스크의 회전 시 상기 커플러 커버가 상기 커플러 본체에 대해 회전을 하며 상기 연마디스크를 체결 및 분리시킨다.In the coupler for coupling a polishing disk of the above-described configuration, when the polishing disk rotates, the coupler cover rotates with respect to the coupler body to couple and separate the polishing disk.
여기서, 상기 커플러 본체에는 원호 형상의 회동홈이 형성되고, 상기 커플러 커버에는 상기 회동홈에 삽입되는 스토퍼가 돌출되며, 상기 회동홈에는 상기 스토퍼에 탄성력을 가하는 판스프링이 구비된다.Here, an arc-shaped rotation groove is formed in the coupler body, a stopper inserted into the rotation groove protrudes from the coupler cover, and a leaf spring that applies elastic force to the stopper is provided in the rotation groove.
즉, 상기 연마디스크의 체결 시 상기 스토퍼가 상기 회동홈을 따라 이동하되 상기 커플러 커버의 회전이 완료되면 상기 판스프링이 상기 스토퍼의 이동을 제한하여 상기 커플러 커버의 역방향 회전을 규제한다.That is, when the polishing disk is fastened, the stopper moves along the rotation groove, but when the rotation of the coupler cover is completed, the leaf spring limits the movement of the stopper and regulates reverse rotation of the coupler cover.
상술한 바와 같이 구성된 본 발명은, 장시간 사용에도 연마디스크와의 체결력을 일정하게 유지할 수 있어 연마디스크가 임의로 분리되는 것을 방지할 수 있다. 따라서 연마 작업 중 연마디스크가 분리되며 발생되는 안전사고를 예방할 수 있다.The present invention configured as described above can maintain a constant fastening force with the polishing disc even when used for a long time, thereby preventing the polishing disc from being separated arbitrarily. Therefore, safety accidents that occur when the polishing disc is separated during polishing work can be prevented.
도 1은 본 발명의 일 실시예에 따른 연마디스크 체결용 커플러의 사용상태도.1 is a diagram illustrating a state of use of a coupler for fastening a polishing disc according to an embodiment of the present invention.
도 2는 본 발명의 일 실시예에 따른 연마디스크 체결용 커플러의 분해사시도.Figure 2 is an exploded perspective view of a coupler for fastening a polishing disc according to an embodiment of the present invention.
도 3은 본 발명의 일 실시예에 따른 연마디스크 체결용 커플러 중 커플러 본체와 커플러 커버의 분해사시도.Figure 3 is an exploded perspective view of the coupler body and the coupler cover among the coupler for fastening a polishing disc according to an embodiment of the present invention.
도 4는 본 발명의 일 실시예에 따른 연마디스크 체결용 커플러 중 커플러 커버의 사시도.Figure 4 is a perspective view of a coupler cover among the couplers for fastening a polishing disc according to an embodiment of the present invention.
도 5와 도 6은 본 발명의 다른 실시예에 따른 연마디스크 체결용 커플러의 커플러 커버와 커플러 본체를 각각 도시한 도면. Figures 5 and 6 are diagrams showing a coupler cover and a coupler body of a coupler for fastening a polishing disc according to another embodiment of the present invention, respectively.
첨부된 도면을 참조하여 본 발명에 따른 실시예를 상세히 설명한다. 이하, 본 발명에 따른 실시예를 설명함에 있어, 그리고 각 도면의 구성요소들에 참조부호를 부가함에 있어, 동일한 구성요소들에 대해서는 비록 다른 도면상에 표시되더라도 가능한 한 동일한 부호를 부가하였다.Embodiments according to the present invention will be described in detail with reference to the attached drawings. Hereinafter, in describing embodiments according to the present invention and in adding reference numerals to components in each drawing, the same numerals are added to the same components as much as possible even if they are shown in different drawings.
본 발명의 일 실시예에 따른 연마디스크 체결용 커플러(이하, '커플러'라 함)는 연마디스크를 그라인더에 간편하고 신속하게 체결하거나 분리할 수 있도록 원터치 방식의 체결 구조를 가진 커플러이다.The coupler for fastening a polishing disk (hereinafter referred to as 'coupler') according to an embodiment of the present invention is a coupler with a one-touch fastening structure that allows the polishing disk to be easily and quickly fastened to or separated from the grinder.
도 1에 도시된 바와 같이, 본 실시예의 커플러(100)는 그라인더(200)의 회전축(210)에 결합되며 볼트(또는 너트)에 의해 고정된다. 그리고 연마디스크(300)는 커플러(100)를 통해 그라인더(200)에 원터치 방식으로 체결되거나 분리된다. As shown in FIG. 1, the coupler 100 of this embodiment is coupled to the rotation shaft 210 of the grinder 200 and is fixed by a bolt (or nut). And the polishing disk 300 is connected to or separated from the grinder 200 in a one-touch manner through the coupler 100.
본 실시예의 커플러(100)는 원터치 방식의 체결 구조이면서 동시에 장시간 사용에도 연마디스크(300)와의 체결력을 일정하게 유지할 수 있으며, 연마 작업 중 연마디스크(300)가 임의로 분리되는 것을 방지할 수 있는 구조를 갖는다.The coupler 100 of this embodiment has a one-touch fastening structure, and at the same time, can maintain a constant fastening force with the polishing disk 300 even when used for a long time, and has a structure that prevents the polishing disk 300 from being separated arbitrarily during polishing work. has
전술한 목적을 달성하기 위한 본 실시예에 따른 커플러(100)에 대해 도면을 참조하여 상세히 살펴보도록 한다.Let's take a closer look at the coupler 100 according to this embodiment for achieving the above-described purpose with reference to the drawings.
우선, 연마디스크(300)에는 커플러(100)와의 체결을 위하여 디스크 홀더(310)가 마련된다.First, the polishing disk 300 is provided with a disk holder 310 for fastening to the coupler 100.
도 2에 도시된 바와 같이, 디스크 홀더(310)는 소정의 두께를 가진 원판이며, 연마디스크(300)의 중심에 위치되고 연마디스크(300)와 일체로 형성된다.As shown in FIG. 2, the disk holder 310 is a disk with a predetermined thickness, is located at the center of the polishing disk 300, and is formed integrally with the polishing disk 300.
디스크 홀더(310)의 중앙부에는 회전체(110)와의 체결을 위한 체결공(312)이 형성되고, 체결공(312)에는 회전체(110)를 고정하기 위한 체결편(314)이 형성된다. 또한, 디스크 홀더(310)의 하면에는 커플러 커버(130)와의 맞물림을 위한 교합홈(316)이 형성된다.A fastening hole 312 for fastening to the rotating body 110 is formed in the center of the disk holder 310, and a fastening piece 314 for fastening the rotating body 110 is formed in the fastening hole 312. Additionally, a mating groove 316 is formed on the lower surface of the disk holder 310 for engagement with the coupler cover 130.
체결편(314)은 회전체(110)를 확실하게 체결할 수 있도록 체결공(312)의 내주면을 따라 방사상으로 배치된 복수(본 실시예에서는 3개)로 구성되며, 회전력을 손실없이 전달할 수 있도록 체결공(312)의 내주면을 따라 연장된 L자 형상을 갖는다.The fastening piece 314 is composed of a plurality (three pieces in this embodiment) arranged radially along the inner peripheral surface of the fastening hole 312 so as to securely fasten the rotating body 110, and can transmit rotational force without loss. It has an L-shape extending along the inner peripheral surface of the fastening hole 312.
교합홈(316)은 커플러 커버(130)의 교합돌기(136)가 삽입되는 부분이며, 연마디스크(300)의 체결 방향을 제한하지 않도록 체결공(312)의 둘레를 따라 방사상으로 배치된 다수개로 구성된다.The occlusal groove 316 is a part into which the occlusal protrusion 136 of the coupler cover 130 is inserted, and is composed of a plurality of occlusal grooves radially arranged along the circumference of the fastening hole 312 so as not to limit the fastening direction of the polishing disc 300. It is composed.
도 2에 도시된 바와 같이, 연마디스크(300)의 체결을 위한 커플러(100)는 회전체(110), 커플러 본체(120) 및 커플러 커버(130)를 포함하여 구성된다.As shown in FIG. 2, the coupler 100 for fastening the polishing disk 300 includes a rotating body 110, a coupler body 120, and a coupler cover 130.
회전체(110)는 디스크 홀더(310)와의 체결을 위한 구성요소이며, 더불어 그라인더(도 1의 200)의 회전력을 커플러 본체(120)에 전달하는 역할도 한다.The rotating body 110 is a component for fastening to the disk holder 310, and also serves to transmit the rotating force of the grinder (200 in FIG. 1) to the coupler body 120.
회전체(110)의 상단에는 디스크 홀더(310)의 체결편(314)과 대응되는 체결돌기(112)가 형성된다. 체결돌기(112)는 L자 형상의 체결편(314)에 걸려 고정될 수 있도록 직육면체 블록 형상이며, 회전체(110)의 상단 둘레를 따라 방사상으로 배치된 복수(본 실시예에서는 3개)로 구성된다.A fastening protrusion 112 corresponding to the fastening piece 314 of the disk holder 310 is formed at the top of the rotating body 110. The fastening protrusions 112 are in the shape of a rectangular parallelepiped block so that they can be fastened to the L-shaped fastening piece 314, and are plural (three in this embodiment) arranged radially along the upper circumference of the rotating body 110. It is composed.
도면에 도시되진 않았지만, 체결돌기(112)와 체결편(314)에는 회전체(110)와 디스크 홀더(310)의 체결력 향상을 위한, 그리고 체결 여부 확인을 위한 요철이 형성될 수 있다.Although not shown in the drawing, unevenness may be formed on the fastening protrusion 112 and the fastening piece 314 to improve fastening force between the rotating body 110 and the disk holder 310 and to check whether fastening is performed.
회전체(110)의 중단에는 회전체(110)의 조립 시 커플러 커버(130)의 안착홈(134)에 삽입되는 플랜지(114)가 형성된다. 이때, 플랜지(114)는 회전체(110)와 커플러 커버(130)가 상대회전을 할 수 있도록 원판 형상으로 형성된다.A flange 114 is formed at the middle of the rotating body 110, which is inserted into the seating groove 134 of the coupler cover 130 when assembling the rotating body 110. At this time, the flange 114 is formed in a disk shape so that the rotating body 110 and the coupler cover 130 can rotate relative to each other.
여기서 '상대회전'이라 함은 회전체(110)와 커플러 커버(130) 중 어느 하나가 정지된 상태에서 다른 하나가 회전하는 것을 의미한다.Here, 'relative rotation' means that one of the rotating body 110 and the coupler cover 130 is stationary while the other rotates.
회전체(110)의 하단에는 접촉부(116)가 형성된다. 접촉부(116)는 회전체(110)의 조립 시 커플러 본체(120)의 관통공(124)에 관통 및 결합된다. 이때, 접촉부(116)는 다각형(본 실시예에서는 6각형)으로 형성되어 회전체(110)의 회전 시 커플러 본체(120)가 함께 회전할 수 있도록 한다.A contact portion 116 is formed at the bottom of the rotating body 110. The contact portion 116 penetrates and is coupled to the through hole 124 of the coupler body 120 when the rotating body 110 is assembled. At this time, the contact portion 116 is formed in a polygon (hexagon in this embodiment) so that the coupler body 120 can rotate together when the rotating body 110 rotates.
커플러 커버(130)는 연마디스크(300)를 체결하거나 분리하기 위한 구성요소이며, 더불어 커플러 본체(120)의 회전력을 연마디스크(300)에 전달하는 역할도 한다.The coupler cover 130 is a component for fastening or separating the polishing disk 300, and also serves to transmit the rotational force of the coupler body 120 to the polishing disk 300.
이를 위하여, 커플러 커버(130)는 회전체(110) 및 커플러 본체(120)에 대해 상대회전을 하거나 회전체(110) 및 커플러 본체(120)와 함께 회전을 할 수 있도록 구성된다.To this end, the coupler cover 130 is configured to rotate relative to the rotating body 110 and the coupler body 120 or to rotate together with the rotating body 110 and the coupler body 120.
예를 들어, 연마디스크(300)의 체결 및 분리 시 커플러 커버(130)는 회전체(110) 및 커플러 본체(120)에 대해 상대회전을 하는 반면, 연마디스크(300)가 완전히 체결된 상태에서는 커플러 커버(130)가 회전체(110) 및 커플러 본체(120)와 함께 회전을 한다.For example, when the polishing disk 300 is fastened and separated, the coupler cover 130 rotates relative to the rotating body 110 and the coupler body 120, while when the polishing disk 300 is fully fastened, the coupler cover 130 rotates relative to the rotating body 110 and the coupler body 120. The coupler cover 130 rotates together with the rotating body 110 and the coupler body 120.
좀 더 상세하게는, 연마디스크(300)의 체결 및 분리 시에는 커플러 커버(130)의 스토퍼(139)가 커플러 본체(120)의 회동홈(126)을 따라 이동하므로 커플러 커버(130)가 회전체(110) 및 커플러 본체(120)에 대해 상대회전을 한다.More specifically, when fastening and disassembling the polishing disk 300, the stopper 139 of the coupler cover 130 moves along the rotation groove 126 of the coupler body 120, so that the coupler cover 130 rotates. Relative rotation is performed with respect to the entire body 110 and the coupler body 120.
반면, 연마디스크(300)가 완전히 체결된 상태에서는 스토퍼(139)가 회동홈(126)의 단부에 접촉되므로 커플러 커버(130)가 회전체(110) 및 커플러 본체(120)와 함께 회전한다.On the other hand, when the polishing disk 300 is fully fastened, the stopper 139 is in contact with the end of the rotation groove 126, so the coupler cover 130 rotates together with the rotating body 110 and the coupler body 120.
도 3과 도 4를 참조하면, 커플러 커버(130)는 소정의 두께를 가진 링 형상의 원판이다.Referring to Figures 3 and 4, the coupler cover 130 is a ring-shaped disk with a predetermined thickness.
커플러 커버(130)의 중앙부에는 회전체(110)가 결합되는 관통공(132)이 형성되고, 관통공(132)의 둘레에는 회전체(110)의 플랜지(114)가 삽입되는 안착홈(134)이 형성된다. 이때, 커플러 커버(130)는 회전체(110)에 대해 회전 가능하게 결합된다.A through hole 132 into which the rotating body 110 is coupled is formed in the central portion of the coupler cover 130, and a seating groove 134 into which the flange 114 of the rotating body 110 is inserted is formed around the through hole 132. ) is formed. At this time, the coupler cover 130 is rotatably coupled to the rotating body 110.
커플러 커버(130)의 상면에는 디스크 홀더(310)의 교합홈(316)에 삽입되는 교합돌기(136)가 돌출된다. 교합돌기(136)는 연마디스크(300)의 체결 방향을 제한하지 않는 개수, 본 실시예의 경우 4개로 구성되며, 관통공(132)의 둘레를 따라 방사상으로 배치된다.An occlusal protrusion 136 that is inserted into the occlusal groove 316 of the disc holder 310 protrudes from the upper surface of the coupler cover 130. The number of occlusal protrusions 136 does not limit the fastening direction of the polishing disc 300, and in this embodiment, it consists of four, and is arranged radially along the circumference of the through hole 132.
전술한 교합돌기(136) 사이에는 패드(138)가 구비된다. 이러한 패드(138)는 연마디스크(300)의 체결 시 디스크 홀더(310)와 접촉하여 진동을 흡수 및 저감하는 역할을 한다.A pad 138 is provided between the above-described occlusal protrusions 136. This pad 138 serves to absorb and reduce vibration by contacting the disk holder 310 when the polishing disk 300 is fastened.
커플러 커버(130)의 하면에는 스토퍼(139)가 돌출된다. 스토퍼(139)는 커플러 커버(130)의 상대회전을 위한 구성요소로서, 커플러 커버(130)의 조립 시 커플러 본체(120)의 회동홈(126)에 삽입된다.A stopper 139 protrudes from the lower surface of the coupler cover 130. The stopper 139 is a component for relative rotation of the coupler cover 130, and is inserted into the rotation groove 126 of the coupler body 120 when the coupler cover 130 is assembled.
스토퍼(139)는 회동홈(126)을 따라 이동하는 구간에서만 회전체(110) 및 커플러 본체(120)에 대해 상대회전을 하도록 하며, 회동홈(126)의 단부에 접촉되면 회전체(110) 및 커플러 본체(120)와 함께 회전되도록 한다.The stopper 139 rotates relative to the rotating body 110 and the coupler body 120 only in the section moving along the rotating groove 126, and when it contacts the end of the rotating groove 126, the rotating body 110 and rotate together with the coupler body 120.
본 실시예에서는 스토퍼(139)를 T자형 블록으로 예시하고 있으나 반드시 이에 한정되는 것은 아니며 원형, 타원형 및 도 5에 예시된 사각형 블록 형태를 가질 수 있음은 물론이다.In this embodiment, the stopper 139 is illustrated as a T-shaped block, but it is not necessarily limited to this, and of course, it can have a circular, oval, or square block shape as illustrated in FIG. 5.
또한, 본 실시예에서는 한 쌍의 스토퍼(139)가 관통공(132)을 중심으로 대향하게 배치된 것으로 예시하고 있으나, 도 5에 도시된 것처럼 관통공(132)을 중심으로 방사상 배치된 3개 또는 그 이상으로 구성될 수도 있다.In addition, in this embodiment, a pair of stoppers 139 are illustrated as being arranged oppositely around the through hole 132, but as shown in FIG. 5, three stoppers are arranged radially around the through hole 132. Or it may consist of more.
커플러 본체(120)는 회전체(110)의 회전력을 연마디스크(300)에 전달하기 위한 구성요소이다. 이때, 회전체(110)의 회전력은 커플러 커버(130)와 디스크 홀더(310)를 통해 연마디스크(300)로 전달된다.The coupler body 120 is a component for transmitting the rotational force of the rotating body 110 to the polishing disk 300. At this time, the rotational force of the rotating body 110 is transmitted to the polishing disk 300 through the coupler cover 130 and the disk holder 310.
도 3에 도시된 바와 같이, 커플러 본체(120)는 커플러 커버(130)보다 두꺼운 두께를 가진 링 형상의 원판이다.As shown in FIG. 3, the coupler body 120 is a ring-shaped disk with a thickness greater than that of the coupler cover 130.
커플러 본체(120)의 상면에는 커플러 커버(130)의 결합을 위한 결합홈(122)이 형성된다. 이때, 커플러 커버(130)는 커플러 본체(120)에 대해 회전 가능하게 결합된다.A coupling groove 122 for coupling the coupler cover 130 is formed on the upper surface of the coupler body 120. At this time, the coupler cover 130 is rotatably coupled to the coupler body 120.
커플러 본체(120)의 중앙부에는 회전체(110)가 결합되는 관통공(124)이 형성된다. 관통공(124)은 회전체(110)의 접촉부(116)와 대응되는 다각형(본 실시예에서는 6각형)으로 형성되어, 커플러 본체(120)가 회전체(110)와 함께 회전할 수 있도록 한다.A through hole 124 to which the rotating body 110 is coupled is formed in the central portion of the coupler body 120. The through hole 124 is formed as a polygon (hexagonal in this embodiment) corresponding to the contact portion 116 of the rotating body 110, so that the coupler body 120 can rotate together with the rotating body 110. .
커플러 본체(130)의 둘레, 좀 더 상세하게는 결합홈(122)의 둘레에는 커플러 커버(120)의 상대회전을 위한 회동홈(126)이 형성된다. 회동홈(126)은 결합홈(122) 둘레를 따라 연장된 원호 형상이며, 관통공(124)를 중심으로 대향하게 배치된 한 쌍으로 구성된다.A rotation groove 126 for relative rotation of the coupler cover 120 is formed around the coupler body 130, more specifically around the coupling groove 122. The rotation groove 126 has an arc shape extending along the periphery of the coupling groove 122 and consists of a pair of opposingly arranged pairs centered on the through hole 124.
본 실시예에서는 한 쌍의 회동홈(126)이 관통공(124)을 중심으로 대향하게 배치된 것으로 예시하고 있으나, 도 6에 도시된 것처럼 관통공(124)을 중심으로 방사상 배치된 3개 또는 그 이상으로 구성될 수도 있다.In this embodiment, a pair of rotation grooves 126 are illustrated as being arranged oppositely about the through hole 124, but as shown in FIG. 6, there are three or three radially arranged around the through hole 124. It may consist of more than that.
회동홈(126)의 양 단부에는 판스프링(140)의 설치를 위한 장착홈(128)이 형성된다. 장착홈(128)은 회동홈(126)의 단부에서 커플러 본체(130)의 원주방향을 따라 연장되며, 판스프링(140)의 탄성 변형 시 그 신장량을 수용할 수 있는 길이로 형성된다.Mounting grooves 128 for installing the leaf spring 140 are formed at both ends of the rotation groove 126. The mounting groove 128 extends from the end of the rotation groove 126 along the circumferential direction of the coupler body 130, and is formed to a length that can accommodate the amount of expansion when the leaf spring 140 is elastically deformed.
회동홈(126)의 내측, 즉 커플러 본체(130)의 반경방향 내측에는 쿠션 부재(150)의 설치를 위한 삽입홈(129)이 형성된다. 삽입홈(129)의 회동홈(126)의 내측 중단에 형성되며 판스프링(140)과 접촉될 수 있도록 외측으로 개방된 형태로 형성된다.An insertion groove 129 for installing the cushion member 150 is formed inside the rotation groove 126, that is, inside the radial direction of the coupler body 130. It is formed at the inner middle of the rotation groove 126 of the insertion groove 129 and is formed in a form that is open outward so as to be in contact with the leaf spring 140.
판스프링(140)은 커플러 커버(130)의 스토퍼(139)에 탄성력을 가하여 탄성 지지하는 가압수단이다. 이러한 판스프링(140)은 소정의 길이와 폭을 가진 스트랩 형태이며, 일측으로 볼록하게 벤딩된 원호 형상을 갖는다.The leaf spring 140 is a pressing means that applies elastic force to the stopper 139 of the coupler cover 130 to elastically support it. This leaf spring 140 is in the form of a strap with a predetermined length and width, and has an arc shape that is convexly bent on one side.
전술한 바와 같이, 판스프링(140)의 양 단부는 커플러 본체(120)의 장착홈(128)에 삽입 및 장착된다. 이때, 판스프링(140)의 중단부는 회동홈(126) 측으로 볼록하게 돌출되며 회동홈(126)에 삽입된 스토퍼(139)에 탄성력을 가함으로써 이동을 제한한다.As described above, both ends of the leaf spring 140 are inserted and mounted into the mounting groove 128 of the coupler body 120. At this time, the middle portion of the leaf spring 140 protrudes convexly toward the pivot groove 126 and limits movement by applying an elastic force to the stopper 139 inserted into the pivot groove 126.
즉, 연마디스크(300)의 체결 및 분리 시 회동홈(126)의 단부로 이동한 스토퍼(139)를 가압하여 이동을 제한함으로써 커플러 커버(130)가 역방향으로 회전하는 것을 규제한다.That is, when the polishing disk 300 is fastened and separated, the stopper 139 moved to the end of the rotation groove 126 is pressed to limit its movement, thereby restricting the coupler cover 130 from rotating in the reverse direction.
전술한 바와 같이, 커플러 커버(130)의 역방향 회전을 규제할 경우 연마디스크(300)와의 체결력을 일정하게 유지할 수 있다. 또한, 연마디스크(300)가 커플러(100)로부터 임의로 분리되는 것을 방지할 수 있으므로 연마 작업 중 연마디스크(300)의 임의 분리로 인한 발생하는 안전사고를 예방할 수 있다.As described above, when the reverse rotation of the coupler cover 130 is regulated, the fastening force with the polishing disk 300 can be kept constant. In addition, since the polishing disk 300 can be prevented from being arbitrarily separated from the coupler 100, safety accidents that occur due to the polishing disk 300 being randomly separated during polishing work can be prevented.
본 실시예에서는 판스프링(140)이 원호 형상인 것으로 예시하고 있으나 반드시 이에 한정되는 것은 아니다. 도 6에 도시된 것처럼 판스프링(140)의 양 단부가 한 번 더 벤딩된 활궁 형상으로 제작될 수도 있다.In this embodiment, the leaf spring 140 is illustrated as having an arc shape, but it is not necessarily limited thereto. As shown in FIG. 6, both ends of the leaf spring 140 may be manufactured into a bow shape in which both ends are bent once more.
한편, 판스프링(140)은 결합홈(122)의 바닥보다 함몰되게 삽입되는 것이 바람직하다. 이는, 결합홈(122)에 삽입되어 회전하는 커플러 커버(130)가 판스프링(140)에 의해 손상되는 것을 방지하기 위함이다. 이를 위하여, 판스프링(140)이 삽입되는 장착홈(128)은 판스프링(140)의 폭보다 깊게 형성되어야 한다.Meanwhile, the leaf spring 140 is preferably inserted more recessed than the bottom of the coupling groove 122. This is to prevent the coupler cover 130, which is inserted into the coupling groove 122 and rotates, from being damaged by the leaf spring 140. To this end, the mounting groove 128 into which the leaf spring 140 is inserted must be formed deeper than the width of the leaf spring 140.
쿠션 부재(150)는 판스프링(140)의 탄성력을 유지하기 위한 보강 수단으로서, 장시간 사용에 따른 판스프링(140)의 탄성력 저하를 방지하기 위한 것이다. 이러한 쿠션 부재(150)는 삽입홈(129)에 삽입된 상태에서 판스프링(140)의 중단을 외측으로 탄성 지지한다. 이때, 쿠션 부재(150)는 판스프링(140)이 일정 범위 내에서 탄성 변형될 수 있도록 소정의 탄성을 가진 재질로 제작되는 것이 바람직하다.The cushion member 150 is a reinforcing means for maintaining the elasticity of the leaf spring 140 and is intended to prevent the elasticity of the leaf spring 140 from being reduced due to long-term use. This cushion member 150 elastically supports the middle part of the leaf spring 140 outward when inserted into the insertion groove 129. At this time, the cushion member 150 is preferably made of a material with a certain elasticity so that the leaf spring 140 can be elastically deformed within a certain range.
이상 본 발명을 바람직한 실시예를 통하여 설명하였는데, 상술한 실시예는 본 발명의 기술적 사상을 예시적으로 설명한 것에 불과하며, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 다양한 변화가 가능함은 이 분야에서 통상의 지식을 가진 자라면 이해할 수 있을 것이다. 따라서 본 발명의 보호범위는 특정 실시예가 아니라 특허청구범위에 기재된 사항에 의해 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술적 사상도 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다.The present invention has been described above through preferred embodiments, but the above-described embodiments are merely illustrative examples of the technical idea of the present invention, and various changes are possible without departing from the technical idea of the present invention. Anyone with ordinary knowledge will be able to understand. Therefore, the scope of protection of the present invention should be interpreted based on the matters stated in the patent claims, not the specific embodiments, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of rights of the present invention.

Claims (16)

  1. 그라인더의 회전축에 결합되고 연마디스크가 체결되는 회전체와, 상기 회전체가 관통 및 결합되는 커플러 본체와, 상기 커플러 본체에 회전 가능하게 결합되는 커플러 커버를 포함하고,It includes a rotating body coupled to the rotating shaft of the grinder and to which the polishing disc is fastened, a coupler body through which the rotating body penetrates and is coupled, and a coupler cover rotatably coupled to the coupler body,
    상기 연마디스크의 회전 시 상기 커플러 커버가 상기 커플러 본체에 대해 회전을 하며 상기 연마디스크를 체결 및 분리시키는 연마디스크 체결용 커플러에 있어서,When the polishing disk rotates, the coupler cover rotates with respect to the coupler body and in the polishing disk coupling coupler for fastening and separating the polishing disk,
    상기 커플러 본체에는 원호 형상의 회동홈이 형성되고, 상기 커플러 커버에는 상기 회동홈에 삽입되는 스토퍼가 돌출되며, 상기 회동홈에는 상기 스토퍼에 탄성력을 가하는 판스프링이 구비되고,An arc-shaped rotation groove is formed in the coupler body, a stopper inserted into the rotation groove protrudes from the coupler cover, and the rotation groove is provided with a leaf spring that applies an elastic force to the stopper,
    상기 연마디스크의 체결 시 상기 스토퍼가 상기 회동홈을 따라 이동하되 상기 커플러 커버의 회전이 완료되면 상기 판스프링이 상기 스토퍼의 이동을 제한하여 상기 커플러 커버의 역방향 회전을 규제하는 것을 특징으로 하는 연마디스크 체결용 커플러.When the polishing disk is fastened, the stopper moves along the rotation groove, but when the rotation of the coupler cover is completed, the leaf spring restricts the movement of the stopper and regulates reverse rotation of the coupler cover. Coupler for fastening.
  2. 청구항 1에 있어서,In claim 1,
    상기 판스프링의 양 단부는 상기 커플러 본체에 삽입 및 장착되고, 상기 판스프링의 중단부는 상기 회동홈으로 돌출하여 상기 스토퍼에 탄성력을 가하는 것을 특징으로 하는 연마디스크 체결용 커플러.A coupler for fastening an abrasive disc, characterized in that both ends of the leaf spring are inserted and mounted in the coupler body, and the middle part of the leaf spring protrudes into the rotation groove to apply elastic force to the stopper.
  3. 청구항 2에 있어서,In claim 2,
    상기 커플러 본체에는 상기 판스프링의 양 단부가 삽입 및 장착되는 장착홈이 형성되고, 상기 장착홈은 상기 판스프링의 탄성 변형 시 신장량을 수용할 수 있도록 형성된 것을 특징으로 하는 연마디스크 체결용 커플러.A coupler for fastening an abrasive disc, characterized in that a mounting groove is formed in the coupler body into which both ends of the leaf spring are inserted and mounted, and the mounting groove is formed to accommodate an amount of expansion when the leaf spring is elastically deformed.
  4. 청구항 3에 있어서,In claim 3,
    상기 판스프링은 상기 커플러 본체에 함몰되게 장착되는 것을 특징으로 하는 연마디스크 체결용 커플러.A coupler for fastening an abrasive disc, characterized in that the leaf spring is recessedly mounted on the coupler body.
  5. 청구항 4에 있어서,In claim 4,
    상기 판스프링의 탄성력 저하를 방지하기 위한 쿠션 부재를 더 포함하여 구성된 것을 특징으로 하는 연마디스크 체결용 커플러.A coupler for fastening an abrasive disc, characterized in that it further includes a cushion member to prevent the elastic force of the leaf spring from being reduced.
  6. 청구항 5에 있어서,In claim 5,
    상기 회동홈의 중단에는 상기 쿠션 부재가 삽입되는 삽입홈이 형성된 것을 특징으로 하는 연마디스크 체결용 홀더.A holder for fastening a polishing disc, characterized in that an insertion groove into which the cushion member is inserted is formed in the middle of the rotation groove.
  7. 청구항 6에 있어서,In claim 6,
    상기 판스프링은 원호 형상으로 벤딩된 것을 특징으로 하는 연마디스크 체결용 커플러.A coupler for fastening an abrasive disc, characterized in that the leaf spring is bent into an arc shape.
  8. 청구항 7에 있어서,In claim 7,
    상기 판스프링은 양 단부가 한 번 더 벤딩된 활궁 형상인 것을 특징으로 하는 연마디스크 체결용 커플러.A coupler for fastening an abrasive disc, characterized in that the leaf spring has a bow shape with both ends bent once more.
  9. 청구항 1 내지 청구항 7 중 어느 한 항에 있어서,The method according to any one of claims 1 to 7,
    상기 회동홈, 상기 스토퍼 및 상기 판스프링은 상기 커플러의 양측에 대향하도록 배치된 2세트로 구성된 것을 특징으로 하는 연마디스크 체결용 홀더.A holder for fastening an abrasive disc, characterized in that the rotation groove, the stopper, and the leaf spring are composed of two sets arranged to face each other on both sides of the coupler.
  10. 청구항 1 내지 청구항 7 중 어느 한 항에 있어서,The method according to any one of claims 1 to 7,
    상기 회동홈, 상기 스토퍼 및 상기 판스프링은 상기 커플러의 둘레에 방사상으로 배치된 3세트 또는 그 이상으로 구성된 것을 특징으로 하는 연마디스크 체결용 홀더.A holder for fastening an abrasive disc, characterized in that the rotation groove, the stopper, and the leaf spring are composed of three or more sets radially arranged around the coupler.
  11. 그라인더의 회전축에 결합되고 연마디스크가 체결되는 회전체와, 상기 회전체가 관통 및 결합되는 커플러 본체와, 상기 커플러 본체에 회전 가능하게 결합되는 커플러 커버를 포함하고,It includes a rotating body coupled to the rotating shaft of the grinder and to which the polishing disc is fastened, a coupler body through which the rotating body penetrates and is coupled, and a coupler cover rotatably coupled to the coupler body,
    상기 연마디스크의 회전 시 상기 커플러 커버가 상기 커플러 본체에 대해 회전을 하며 상기 연마디스크를 체결 및 분리시키는 연마디스크 체결용 커플러에 있어서,When the polishing disk rotates, the coupler cover rotates with respect to the coupler body and in the polishing disk coupling coupler for fastening and separating the polishing disk,
    상기 커플러 본체에는 원호 형상의 회동홈이 형성되고, 상기 커플러 커버에는 상기 회동홈에 삽입되는 스토퍼가 돌출되며,An arc-shaped rotation groove is formed in the coupler body, and a stopper inserted into the rotation groove protrudes from the coupler cover,
    상기 회동홈의 양 단부에는 장착홈이 형성되고, 상기 장착홈에는 상기 스토퍼를 탄성 지지하는 판스프링이 삽입되며,Mounting grooves are formed at both ends of the rotation groove, and a leaf spring is inserted into the mounting groove to elastically support the stopper,
    상기 판스프링은 원호 형상으로 벤딩되되 그 중단이 상기 회동홈 측으로 돌출되어 상기 스토퍼를 탄성 지지하며,The leaf spring is bent into an arc shape, and its middle protrudes toward the rotation groove to elastically support the stopper,
    상기 회동홈의 내측, 즉 상기 커플러 본체의 반경방향 내측에는 삽입홈이 형성되고, 상기 삽입홈에는 상기 판스프링의 탄성력 저하를 방지하는 쿠션 부재가 설치된 것을 특징으로 하는 연마디스크 체결용 홀더.An insertion groove is formed on the inside of the rotation groove, that is, on the radial inside of the coupler body, and a cushion member is installed in the insertion groove to prevent a decrease in the elastic force of the leaf spring.
  12. 청구항 11에 있어서,In claim 11,
    상기 판스프링은 양 단부가 한 번 더 벤딩된 활궁 형상인 것을 특징으로 하는 연마디스크 체결용 커플러.A coupler for fastening an abrasive disc, characterized in that the leaf spring has a bow shape with both ends bent once more.
  13. 청구항 11에 있어서,In claim 11,
    상기 판스프링은 상기 커플러 본체에 함몰되게 장착되는 것을 특징으로 하는 연마디스크 체결용 커플러.A coupler for fastening an abrasive disc, characterized in that the leaf spring is recessedly mounted on the coupler body.
  14. 청구항 11에 있어서,In claim 11,
    상기 장착홈은 상기 판스프링의 탄성 변형 시 신장량을 수용할 수 있도록 형성된 것을 특징으로 하는 연마디스크 체결용 커플러.A coupler for fastening an abrasive disc, wherein the mounting groove is formed to accommodate an amount of expansion when the leaf spring is elastically deformed.
  15. 청구항 11 내지 청구항 14 중 어느 한 항에 있어서,The method according to any one of claims 11 to 14,
    상기 회동홈, 상기 스토퍼 및 상기 판스프링은 상기 커플러의 양측에 대향하도록 배치된 2세트로 구성된 것을 특징으로 하는 연마디스크 체결용 홀더.A holder for fastening an abrasive disc, characterized in that the rotation groove, the stopper, and the leaf spring are composed of two sets arranged to face each other on both sides of the coupler.
  16. 청구항 11 내지 청구항 14 중 어느 한 항에 있어서,The method according to any one of claims 11 to 14,
    상기 회동홈, 상기 스토퍼 및 상기 판스프링은 상기 커플러의 둘레에 방사상으로 배치된 3세트 또는 그 이상으로 구성된 것을 특징으로 하는 연마디스크 체결용 홀더.A holder for fastening an abrasive disc, characterized in that the rotation groove, the stopper, and the leaf spring are composed of three or more sets radially arranged around the coupler.
PCT/KR2023/008949 2022-06-27 2023-06-27 Coupler for fastening polishing disk WO2024005507A1 (en)

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KR10-2022-0078314 2022-06-27
KR1020220078314A KR20240001537A (en) 2022-06-27 2022-06-27 Coupler for clamping polishing disk

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101483963B1 (en) * 2014-11-25 2015-01-20 김창성 Attachable device for hand grinding polishing disk
JP6044718B2 (en) * 2013-08-27 2016-12-14 日立工機株式会社 Grinder
KR101784968B1 (en) * 2017-01-16 2017-10-13 주식회사 이엔큐원터치 Manufacturing method of polishing disk combined with hand grinder
KR101934511B1 (en) * 2018-05-14 2019-01-02 김창성 Coupler for clamping polishing disk
KR20200024384A (en) * 2018-08-27 2020-03-09 김점용 Grinder blade fixing device for Hand Grinder
CN213106134U (en) * 2020-08-12 2021-05-04 青岛天隆达建筑材料有限公司 Angle grinder is used in production of aluminum alloy skylight of conveniently changing abrasive disc

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6044718B2 (en) * 2013-08-27 2016-12-14 日立工機株式会社 Grinder
KR101483963B1 (en) * 2014-11-25 2015-01-20 김창성 Attachable device for hand grinding polishing disk
KR101784968B1 (en) * 2017-01-16 2017-10-13 주식회사 이엔큐원터치 Manufacturing method of polishing disk combined with hand grinder
KR101934511B1 (en) * 2018-05-14 2019-01-02 김창성 Coupler for clamping polishing disk
KR20200024384A (en) * 2018-08-27 2020-03-09 김점용 Grinder blade fixing device for Hand Grinder
CN213106134U (en) * 2020-08-12 2021-05-04 青岛天隆达建筑材料有限公司 Angle grinder is used in production of aluminum alloy skylight of conveniently changing abrasive disc

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